AI-Powered Research

1. Adult men or women aged 50 years and older (with no upper age limit).
2. Fracture of the femoral neck confirmed with either anteroposterior and lateral hip radiographs, computed tomography, or magnetic resonance imaging (MRI).
3. Any degree of displacement (i.e., undisplaced or displaced) of the femoral neck fracture that can be closed reduced.
4. Operative treatment of displaced fractures within 2 days (i.e., 48 hours) of presenting to the emergency room.
5. Operative treatment of undisplaced fractures within 7 days of presenting to the emergency room.
6. Patient was ambulatory prior to fracture, though they may have used an aid such as a cane or a walker.
7. Anticipated medical optimalization for operative fixation of the hip by anesthesia and/or internal medicine team.
8. Provision of informed consent by patient or legal guardian.
9. Low energy fracture (defined as a fall from standing height).
10. No other major trauma.

Exclusion Criteria

1. Patients not suitable for internal fixation (i.e., severe osteoarthritis, rheumatoid arthritis, or pathologic fracture).
2. Associated major injuries of the lower extremity (i.e., ipsilateral or contralateral fractures of the foot, ankle, tibia, fibula, knee, or femur; dislocations of the ankle, knee, or hip; or femoral head defects or fracture).
3. Retained hardware around the affected hip.
4. Infection around the hip (i.e., soft tissue or bone).
5. Patients with disorders of bone metabolism other than osteoporosis (i.e., Paget*s disease, renal osteodystrophy).
6. Moderate or severe cognitively impaired patients (i.e., Six Item Screener with 3 or more errors).
7. Patients with Parkinson*s disease (or dementia) severe enough to increase the likelihood of falling or severe enough to compromise rehabilitation.
8. Likely problems, in the judgment of the investigators, with maintaining follow-up.

Study & Design

Study Type: Interventional

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>Revision surgery within 2 years of initial surgery to promote fracture healing,<br /><br>relieve pain, treat infection, or improve function include the following:<br /><br>1. Implant removal prior to fracture healing (to achieve union).<br /><br>2. Revision surgery with another internal fixation implant.<br /><br>3. Revision surgery to arthroplasty.<br /><br>4. Incision and drainage for deep infection at the bone implant.</p><br>

Secondary Outcome Measures

Name	Time	Method
<p>We will measure functional outcome and quality of life using self-administered<br /><br>and interview-administered questionnaires. Functional outcome questionnaires<br /><br>will include a generic health status measurement instrument (SF-12), a hip<br /><br>function and pain questionnaire (WOMAC), and a generic utility measure (HUI3).<br /><br>We will further report the effect of sliding hip screws versus cancellous<br /><br>screws on complications including mortality, AVN, nonunion, implant breakage or<br /><br>failure, implant removal after fracture healing to minimize pain, and infection<br /><br>(i.e., superficial and deep).</p><br>